This one is pretty easy to reproduce:
- Send an email with a delayed sending time
- Try to exit EM Client and it complains the Outbox is not empty
EM Client should know that the email is in the delay queue and let EM Client shut down instead of notifying the user.
In my specific case, I had sent a delayed email, promptly forgot about it, and then tried to close EM client. EM Client then complained the Outbox was not empty, and I spent a half hour figuring out how to find the Outbox so I could see the email. (Tools -> Settings -> “General” -> “Show Local Folders” and the Outbox is there). There was also no notification on the email showing that it was to be sent later.
Small problem perhaps, but it could be smoother.